DelayedActions.swift

import Foundation

struct DelayedActions {
    let queue: DispatchQueue
    private var shouldDelay: Bool = true
    private var closures: [() -> Void] = []

    init() {
        queue = DispatchQueue.main
    }

    init(dispatchQueue: DispatchQueue) {
        queue = dispatchQueue
    }

    mutating func delay(_ closure: @escaping () -> Void) {
        if shouldDelay {
            closures.append(closure)
        } else {
            queue.async {
                closure()
            }
        }
    }

    mutating func consume() {
        for closure in closures {
            queue.async(execute: closure)
        }

        closures = []

        shouldDelay = false
    }

    mutating func startDelaying() {
        shouldDelay = true
    }
}